Re: [PATCH 2/3] perf/core: introduce pmu_event_flags and PMUEF_READ_CPU_PKG

Peter Zijlstra
2016-08-04T15:04:32Z

On Mon, Aug 01, 2016 at 07:44:54PM -0700, David Carrillo-Cisneros wrote:
> +++ b/include/linux/perf_event.h
> @@ -681,9 +681,21 @@ struct perf_event {
> #endif
>
> struct list_head sb_list;
> +
> + /* Per-event flags to generic code set by PMU. */
> + int pmu_event_flags;
> +

It appears to me we already have group_flags and attach_state which both
are serialized by ctx->lock.

Could we maybe merge the lot into one flags field?